I am researching Black, Kelly, Erwin, Gerlach and many related families in Pennsylvania. The main counties of interest include Lawrence, Butler, Armstrong, Clarion, Venago, and Huntingdon.
James and Jemima (Kelly) Black were married in possibly Butler County, Pennsylvania. Both died young, James before 1880 and Jemima by 1882. They left four children to be raised by other family members. I am descended from their son, William Plummer Black who married Myrtle Rebecca Erwin.
Any information would be greatly appreciated. I am also willing to share whatever information I have.